Transcript for Teenaged 'Bonnie and Clyde' Out Run Police in Car Chase

teenage bonnie and clyde on the run with two of their friends. The suspected car thieves managed to get away from police during a high-speed chase. And now, the reason to find them may be more urgent than ever. Linsey davis is on the story. Good morning. Reporter: She's been missing since monday when her boyfriend and two other male teens. Briana gomez is 15, she is wanted by police and has diabetes. Each day she remains on the run is all the more critical. This morning, police in at least two states are on the hunt for 15-year-old briana gomez and her boyfriend, spencer lindell. Gomez's grandfather is making a plea for her safe return. I don't want to lose my granddaughter. Reporter: Police say the couple's alleged bonnie and clyde-style crime spree began on tuesday, near eau claire, wisconsin. Authorities say they stole a car and then fled. They were next spotted outside of denver, colorado, on thursday, where officials say the young lovers led deputies on a 30-mile high-speed chase, through logan and morgan counties, before allegedly ditching that stolen car and stealing a new one. Wisconsin police say while the teens could be headed anywhere, one possible destination is southern california. Her boyfriend's father has a fishing boat out in riverside, california. Reporter: Police say the stakes in this manhunt are higher than just grand theft auto. While searching the car abandoned by the teens, investigators found that gomez, a diabetic, left behind the insulin she needs to survive. There's going to be consequences for what you have done. We don't care about that. We love you no matter what happens. We want our granddaughter safe. Reporter: Gomez was recently released from six months from juvenile detention for various run-ins with police. Her grandfather says they know they will have to pay the price but they want her back. She is prone to seizures. She needs insulin. Without it, she could die. This is a dangerous situation on many levels. Very dangerous. She did bring the insulin with her. She left it behind in one of the getaway cars. Painful to see how upset her grandfather is. Linsey, thank you. Let's get back over to ron

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